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2 years ago

If Janet scored an 85% on her test she answered 34 questions correctly how many questions were on the test

1 answer:

7 0

40 questions. You set up a proportion, mutiply 34 by a 100 and get 3400. Then you divide 3400 by 85 and you get ur answer. You could also try guessing by putting in random values you think are the whole number and multiplying them by 0.85. So if you guess 44 is the whole and try checking it by multiplying it by .85 and get a value thats higher than the value the percentage is equal to you try another smaller value. So if 44 doesn't work you can try 40. 40 times .85 is 34 so your answer of 40 questions is correct.

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THE PIC IS DOWN BELOW

Alex

Answer:

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Step-by-step explanation:

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3 years ago

Enter the correct answer in the box.

guapka [62]

Answer:

y = -x² + 60x + 256 in²

Explanation:

Before we begin, remember the following:

yᵃ × yᵇ = yᵃ⁺ᵇ

Now, for the given problem:

We know that the area of the rectangle is the product of its dimensions (length and width)

This means that:

Area of rectangle = length × width

Now, we are given that:

length of game board = x+4 in

width of game board = -x+64 in

Substitute with the givens in the rule it as follows:

Area of rectangle = length × width

Area of board game = (x+4)(-x+64)

Use the distributive property, compute the product and gather like terms as follows:

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Area of board game = x(-x) + x(64) +4(-x) +4(64)

Area of board game = -x² + 64x - 4x + 256

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Hope this helps :)

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2 years ago

Write and solve a proportion to answer the question.

andreev551 [17]

Number 1 is 1/20 ,so number 0.5 is 1/40 of 20. so p=100/40 = 10/4 = 2.5%
so 0.5 is 2.5% of 20
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3 years ago

Diane runs 10 miles in 55 minutes, how many minuets does she take per mile?

Brut [27]

Step-by-step explanation:

Hi!!

 It's simple, you can do it easily. 

no. of miles = 10 miles

time = 55 mins.

now,

no. of mins for 1 mile = no. of miles/ time

 = 10 /55

 =0.18181818 min.

so, she takes 0.181818 or 2/11 min per each mile.

Hope it helps...

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3 years ago

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The answer is D hope this helps :]

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3 years ago